Chapter 3 Basic Function; Outline Of Servo Parameter And Object Dictionary; Servo Parameter - Mitsubishi Electric MELSERVO-J5 MR-J5 Series User Manual

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BASIC FUNCTION
This chapter explains each function that is used for basic operation of the servo amplifier. Set each function as required. For
advanced operation of the servo amplifier, refer to the following.
Page 148 APPLICABLE FUNCTIONS
Precautions
• To prevent a malfunction and machine damage, on the first operation after setting, check the operating condition with a low
speed command.
3.1

Outline of servo parameter and object dictionary

On MR-J5 servo amplifiers, the functions of the servo amplifiers are set with servo parameters, and objects enable
communication of data such as command values and feedback values with controllers.

Servo parameter

For the servo parameters that updates data periodically in the cyclic communication, do not write a value with
an engineering tool or other tools, as the values will be overwritten from the controller.
Each function of the servo amplifiers can be set with the servo parameters. The servo parameters are stored in the non-
volatile memory in the servo amplifier. Initial values are set for the servo parameters in the factory setting. Change the setting
with engineering tools or other methods as necessary.
The servo parameters related to the basic functions explained in this manual are shown in the following example.
If the servo parameter name is "Travel direction selection" and the number is "PA14"
[Pr. PA14 Travel direction selection]
Servo Symbol
parameter
PA14 *POL
In addition, the servo parameters in which the symbols are preceded by * are enabled by the following conditions.
• *: After setting, cycle the power, or reset either the controller or the software.
• **: After setting, cycle the power or reset the software.
For a servo parameter which uses one particular digit to select a function, the position of its digit indicates the detail number of
the servo parameter, and the value in hexadecimal which is set to the digit indicates the selected function.
For example, the detail number of the servo parameter in the last digit is expressed as [Pr. PA01.0]. In addition, a servo
parameter which uses a combination of several digits to select a function, is expressed using "-" as seen in [Pr. PA01.0-1].
Name
Travel direction selection
Outline
The rotation direction of the servo motor or the travel direction of the linear servo
motor can be set.
Initial value: 0 (CCW or positive direction)
3.1 Outline of servo parameter and object dictionary
3 BASIC FUNCTION
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